201001100001222 has 16 divisors (see below), whose sum is σ = 402396706589760. Its totient is φ = 66934615569192.

The previous prime is 201001100001193. The next prime is 201001100001239. The reversal of 201001100001222 is 222100001100102.

It is a junction number, because it is equal to n+sod(n) for n = 201001100001198 and 201001100001207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16437767848 + ... + 16437780075.

It is an arithmetic number, because the mean of its divisors is an integer number (25149794161860).

Almost surely, 2^{201001100001222} is an apocalyptic number.

201001100001222 is an abundant number, since it is smaller than the sum of its proper divisors (201395606588538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201001100001222 is a wasteful number, since it uses less digits than its factorization.

201001100001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32875548947.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201001100001222 its reverse (222100001100102), we get a palindrome (423101101101324).

The spelling of 201001100001222 in words is "two hundred one trillion, one billion, one hundred million, one thousand, two hundred twenty-two".